Cambridge Illustrated History of Archaeology.
ed. Paul Bahn, 386 p. (1996). Explorations of the Middle Ages to the present in eight chapters: archaeology of archaeology; old worlds and new, 1500-1760; antiquarians and explorers, 1760-1820; science and romanticism, 1820-1860; search for human origins, 1860-1920; archaeology comes of age, 1920-1960; new techniques and competing philosophies, 1960-1990, and current controversies and future trends. Chronology of archaeology from 1500 and bibliography. All illustrations are original prints, manuscripts, artistic renderings, and photographs.
Avery-Fine Arts N5330 C14

Companion Encyclopedia of Archaeology. (Routledge:pub.; E-brary:Online vendor)
Ed. by Graeme Barker. Twenty-nine essays by individual authors are groups under three headings: origins, aims, and methods; themes and approaches; and writing archaeological history. Each essay includes an extensive list of references and a short "select bibliography." Photographs, drawings, tables, and plans.
Avery-Fine Arts N5330 C72 2 vols. = 1219 p. (1999).

Dictionary of Archaeology. (Oxford)
Ed. by Ian Shaw and Robert Jameson, 624 p. (1999).
Includes short definitions and longer articles on recent archaeological theory and applications with bibliographies of primary and recent sources. Some maps and drawings. China, Japan, and Oceania are covered.
Avery-Fine Arts N5330 D56

Lexikon des Mittelalters. (Onlin:a choice within the Brepols’ offerings: 1977-1999)
The standard encyclopedia for medieval studies. It deals with all branches of Medieval Studies and covers the period from 300 to 1500 AD/CE for the whole of Europe and parts of the Middle East and North Africa. Users can perform automatic bibliographic searches in the International Medieval Bibliography Online.

Oxford Companion to Archaeology. (pub.:1996; released Online:2004).
Paper: 844 p. (1996)
Ed. by Brian Faqan. "...covers entire spectrum of human existence" from Australopithecines to modern New York City. All aspects of archaeology from Acheulean tradition to zoology. Signed entries with bibliographies and cross-references. No entries for individual archaeologists, but those mentioned in the text are indexed. Maps and timelines included. Updates and expands the Cambridge Encyclopedia of Archaeology (copies available in multiple locations), but lacks its illustrations of artifacts, architectural forms, and art.
Butler Reference CC70 .O96 2012 (for 2012 edition)

Oxford Dictionary of Byzantium. (pub.:1991; released Online:2005)
Ed. by Alexander P. Kazhdan. Contains more than 5,000 searchable entries covering all aspects of Byzantine history and civilization from the 4th through the 15th centuries, with special depth in subjects such as bureaucratic titles and fiscal terms, urban life, and rural economy.

Oxford Encyclopedia of Ancient Egypt. ed. Donald B. Redford. (pub.:2001; released Online:2005)
Contains 600 entries covering the prehistoric, predynastic, and dynastic phases of ancient Egypt within the context of its contiguous and sometimes conquering neighbors, tracing its history through the Islamic conquest of 642 CE, with the focus on dynastic Egypt. Treats all branches of Egyptology: archaeology, anthropology, architecture, linguistics, literary studies, epigraphy, papyrology, history, art history, religion, economics, ecology, geomorphology, and the life sciences.

Oxford Encyclopedia of Ancient Greece and Rome. (Online) (2012)
Ed. by Michael Gagarin. This multi-volume reference work is a comprehensive overview of the major cultures of the classical Mediterranean world--Greek, Hellenistic, and Roman – from the Bronze Age to the fifth century CE.
Butler Reference DE5. O95 2012

Oxford Encyclopedia of Mesoamerican Cultures. ed by David Carrasco. (2006) (Online)
Chronicles Pre-Hspanic, colonial, and modern Mesoamerica, defined as the lands stretching from Mexico to the southern tip of Central America. With more than 600 articles, it encompasses the civilizations of the Pe-Columbian era (including Olmec, Aztec, and Maya peoples) up through the colonial and postcolonial periods. Treats: art, archaeology, religious studies, anthropology, history, and historiography of the region in fully cross-referenced, signed articles by the leading scholars in the discipline.

Oxford Islamic Studies online. (Online)
Contains more than 3,000 encyclopedia articles as well as primary source documents, maps, images, and timelines. Comprehensive resource for the study of the history, people, politics, and cultures of the Islamic worlds.

Pauly-Wissova. Brill's new Pauly. (Online)
Intended as an aid for the study of Greek and Roman culture and its multifaceted presence in all periods of European and, since the Early Modern period, world history. See also paper editions: